Intelligent Mapping of Hyperspace. - Célia Ghedini Ralha; José Carlos Loureiro Ralha (Web Intelligence, 2003)

Towards a Natural Way of Reasoning. - José Carlos Loureiro Ralha; Célia Ghedini Ralha (SBIA, 2004)

Intelligent Web Information Mapping with HyperMap. - Célia Ghedini Ralha; José Carlos Loureiro Ralha; Charles Antônio Nascimento Costa; Augusto Arcoverde da Rocha (Web Intelligence, 2005)

HyperMap: A System to Map the Web. - Célia Ghedini Ralha; José Carlos Loureiro Ralha (J. Digit. Inf. Manag., 2006)